There's a lot of animes which taught me, or rather reminded me of quite a bit. Though Higurashi taught me the most, I think.
1. Everything has a Ying and Yang
2. Everything has Cons and Pros
3. Come to your friends when you need help, but only to the ones you trust.
4. Don't be afraid to ask for help\
5. Don't fear something you don't know, for fear is unnessesary, unless it is something to be feared once you know what it is.
6. and a lot of others lessons : )